Comparison of depressive symptoms among emergency physicians and the general population in China: a cross-sectional study based on national data

Table 4 Binary logistic regression of factors related to major depression among emergency physicians (n = 10 457)

Variables	OR	95% CI	P value
Basic characteristics
Age (years)
≤ 30	Reference
31–40	1.02	0.89–1.17	0.772
≥ 41	0.84	0.70–1.01	0.057
Gender
Male	Reference
Female	1.00	0.89–1.12	0.976
Marital status
Unmarried/other	Reference
Married	0.75	0.65–0.86	< 0.001
Educational level
Associate degree or below	Reference
Bachelor degree or above	1.22	1.06–1.40	0.006
Habitual residence
Western region	Reference
Central region	0.82	0.73–0.92	0.001
Eastern region	0.84	0.75–0.93	0.001
Work-related factors
Qualification title
Junior or below	Reference
Moderate	1.09	0.97–1.23	0.147
High	1.03	0.85–1.24	0.780
Monthly income (CNY)
≤ 4000	Reference
4001–6000	0.83	0.74–0.92	0.001
≥ 6001	0.66	0.58–0.74	< 0.001
Years of service
< 1	Reference
1–5	1.26	1.08–1.46	0.003
≥ 6	1.56	1.32–1.84	< 0.001
Night shift (times/month)
≤ 5	Reference
6–10	1.33	1.16–1.51	< 0.001
≥ 11	1.83	1.58–2.11	< 0.001
Experienced workplace violence
No	Reference
Yes	2.51	2.16–2.94	< 0.001
Lifestyle factors
Smoking
No	Reference
Yes	1.64	1.47–1.84	< 0.001
Drinking
No	Reference
Yes	0.96	0.87–1.07	0.463
Physical exercise (times/week)
Never	Reference
Once	0.69	0.61–0.77	< 0.001
Twice or more	0.59	0.53–0.66	< 0.001
ERI
No	Reference
Yes	4.18	3.62–4.85	< 0.001
Self-efficacy	0.91	0.91–0.92	< 0.001

OR odds ratio, CI confidence interval, CNY Chinese Yuan, ERI effort-reward imbalance

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